BEGIN;
BEGIN
create or replace view revenue5 (supplier_no, total_revenue) as
	select
		l_suppkey,
		sum(l_extendedprice * (1 - l_discount))
	from
		lineitem
	where
		l_shipdate >= '1994-11-01'
		and l_shipdate < date'1994-11-01' + interval '90 days'
	group by
		l_suppkey;
CREATE VIEW
EXPLAIN (ANALYZE, BUFFERS)
select
	s_suppkey,
	s_name,
	s_address,
	s_phone,
	total_revenue
from
	supplier,
	revenue5
where
	s_suppkey = supplier_no
	and total_revenue = (
		select
			max(total_revenue)
		from
			revenue5
	)
order by
	s_suppkey;
                                                                                       QUERY PLAN                                                                                        
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Merge Join  (cost=2360054.73..2365151.75 rows=3704 width=79) (actual time=52578.817..52578.821 rows=1 loops=1)
   Merge Cond: (supplier.s_suppkey = revenue5.supplier_no)
   Buffers: shared hit=574963 read=746990
   InitPlan 1 (returns $0)
     ->  Aggregate  (cost=1171565.33..1171565.34 rows=1 width=8) (actual time=24441.903..24441.903 rows=1 loops=1)
           Buffers: shared hit=249815 read=410437
           ->  HashAggregate  (cost=1171481.99..1171519.03 rows=3704 width=12) (actual time=24373.581..24429.049 rows=100000 loops=1)
                 Buffers: shared hit=249815 read=410437
                 ->  Bitmap Heap Scan on lineitem  (cost=47192.32..1149209.32 rows=2227267 width=12) (actual time=1570.944..20195.529 rows=2247161 loops=1)
                       Recheck Cond: ((l_shipdate >= '1994-11-01'::date) AND (l_shipdate < '1995-01-30 00:00:00'::timestamp without time zone))
                       Buffers: shared hit=249815 read=410437
                       ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..46635.50 rows=2227267 width=0) (actual time=1201.933..1201.933 rows=2251759 loops=1)
                             Index Cond: ((l_shipdate >= '1994-11-01'::date) AND (l_shipdate < '1995-01-30 00:00:00'::timestamp without time zone))
                             Buffers: shared read=6137
   ->  Index Scan using pk_supplier on supplier  (cost=0.00..4791.46 rows=100000 width=71) (actual time=0.103..38.833 rows=52960 loops=1)
         Buffers: shared hit=1447 read=1
   ->  Sort  (cost=1188489.39..1188498.65 rows=3704 width=12) (actual time=52532.929..52532.929 rows=1 loops=1)
         Sort Key: revenue5.supplier_no
         Sort Method: quicksort  Memory: 25kB
         Buffers: shared hit=573516 read=746989
         ->  Subquery Scan on revenue5  (cost=1188186.49..1188269.83 rows=3704 width=12) (actual time=52518.525..52532.891 rows=1 loops=1)
               Buffers: shared hit=573516 read=746989
               ->  HashAggregate  (cost=1188186.49..1188232.79 rows=3704 width=12) (actual time=52518.523..52532.888 rows=1 loops=1)
                     Filter: (sum((public.lineitem.l_extendedprice * (1::double precision - public.lineitem.l_discount))) = $0)
                     Rows Removed by Filter: 99999
                     Buffers: shared hit=573516 read=746989
                     ->  Bitmap Heap Scan on lineitem  (cost=47192.32..1149209.32 rows=2227267 width=12) (actual time=2700.937..23704.287 rows=2247161 loops=1)
                           Recheck Cond: ((l_shipdate >= '1994-11-01'::date) AND (l_shipdate < '1995-01-30 00:00:00'::timestamp without time zone))
                           Buffers: shared hit=323701 read=336552
                           ->  Bitmap Index Scan on lineitem_l_shipdate_l_suppkey__idx  (cost=0.00..46635.50 rows=2227267 width=0) (actual time=2255.895..2255.895 rows=2251759 loops=1)
                                 Index Cond: ((l_shipdate >= '1994-11-01'::date) AND (l_shipdate < '1995-01-30 00:00:00'::timestamp without time zone))
                                 Buffers: shared read=6138
 Total runtime: 52598.342 ms
(33 rows)

drop view revenue5;
DROP VIEW
COMMIT;
COMMIT